Homoserine O-acetyltransferase / Aspartokinase / Homoserine dehydrogenase; This enzyme is a modular protein with a homoserine O-acetyltransferase module (N-terminal) that catalyses the homoserine acetylation and belongs to the alpha/beta hydrolase fold family, an aspartate kinase module (central) that catalyzes the phosphorylation of aspartate and belongs to the amino acid kinase family and, in C- terminal part, a homoserine dehydrogenase module that catalyzes the NAD-dependent reduction of aspartate beta- semialdehyde into homoserine. This module is composed of a substrate-binding dom [...]

ThrA is a fusion-protein between aspartate kinase I (N-terminal) and homoserine dehydrogenase I (C-terminal) involved in L-Lysine and L-threonine biosynthesis pathways. Aspartate kinase I converts L-aspartate to 4-phospho-L-aspartate and belongs to the amino acid kinase family. Homoserine dehydrogenase I converts the L-homoserine to L-aspartate 4-semialdehyde. Homoserine dehydrogenase I is composed of a substrate-binding domain belonging to Homoserine dehydrogenase family and a NAD-binding domain (Rossman fold). ThrA features also two central regulatory ACT domains; Localized in the cy [...]

Aspartate-semialdehyde dehydrogenase; Catalyzes the NADPH-dependent formation of L-aspartate- semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl- 4-phosphate; Belongs to the aspartate-semialdehyde dehydrogenase family.

Dihydrodipicolinate synthetase; Catalyzes the condensation of (S)-aspartate-beta-semialdehyde [(S)-ASA] and pyruvate to 4-hydroxy-tetrahydrodipicolinate (HTPA).

Sialidase, family GH33; Sialidase catalyzes the hydrolysis of alpha-(2->3)-, alpha-(2->6)-, alpha-(2->8)- glycosidic linkages of terminal sialic residues in oligosaccharides, glycoproteins, glycolipids, colominic acid and synthetic substrates. It belongs to the family 33 of the glycoside hydrolases. Features a signal peptide cleaved between residues 26 and 27. Localized in the periplasm; High confidence in function and specificity.

Bifunctional enzyme including 3-deoxy-7-phosphoheptulonate synthase (DAHP synthase) in N-terminus and chorismate mutase in C-terminus. DAHP synthase catalyzes the first step in the common pathway leading to the biosynthesis of aromatic compounds, the stereospecific condensation of phosphoenolpyruvate and D-erythrose-4-phosphate giving rise to 3-deoxy-D-arabino-heptulosonate-7-phosphate (DAHP). Chorismate mutase catalyzes the conversion of chorismate to prephenate in the pathway of tyrosine and phenylalanine biosynthesis. Localized in the cytoplasm; High confidence in function and speci [...]

N-acetylneuraminate lyase is involved in sialic acid metabolism. It catalyzes the cleavage of N-acetylneuraminic acid (sialic acid) to form pyruvate and N-acetylmannosamine via a Schiff base intermediate. NanA belongs to the dihidropicolinate synthase (DHDPS) family and forms a homotetramer. Localized in the cytoplasm; High confidence in function and specificity.

Ribosomal protein S15; Forms an intersubunit bridge (bridge B4) with the 23S rRNA of the 50S subunit in the ribosome.

N-acetyl-D-glucosamine 2-epimerase catalyzes the interconversion of N-acetylglucosamine to N-acetylmannosamine. It functions as a homodimer, where monomer has an alpha(6)/alpha(6)-barrel structure commonly found in glucoamylases and cellulases This enzyme is involved in sialic acid metabolism. Localized in the cytoplasm; High confidence in function and specificity.